If you're staying in the dorms, you want to check in at the Royer Student Activity Center which is at 85 Curl Dr., Columbus, OH 43210.  There's no specific check-in time per se.  The actual housing will be in Halloran House which is just a short walk from Royer.

Registration for the conference starts at 6 p.m. on Friday evening in the 1st floor lobby of Mendenhall Labs which is at 125 S Oval Mall, Columbus, OH 43210.   The conference program starts at 7:00 p.m.  All of the conference events take place in Mendenhall Labs.